000009972 001__ 9972
000009972 005__ 20240124114332.0
000009972 0247_ $$2DOI$$a10.6083/rv042t808
000009972 037__ $$aETD
000009972 245__ $$aChanges in esthetic parameters of vacuum-formed retainers after staining and cleaning
000009972 260__ $$bOregon Health and Science University
000009972 269__ $$a2022
000009972 336__ $$aThesis
000009972 502__ $$bM.S.
000009972 502__ $$gOrthodontics
000009972 520__ $$aThe objective of this study is to measure and compare initial, post-staining, and post-cleaning color, gloss and surface roughness of five different orthodontic thermoplastic retainer materials. Conclusion: For all VFR materials, staining and cleaning does not change contrast ratio, gloss, and surface roughness in a clinically significant manner. Turmeric is a powerful staining agent, and [Delta]E*00 for PE > PP > PU when stained. Invisalign Cleaning Crystals, Polident, and Retainer Brite do not differ significantly in effectiveness of stain-removal except for turmeric in certain cases, where Invisalign Cleaning Crystals were most effective.
000009972 650__ $$aColoring Agents$$018123
000009972 6531_ $$aremovable orthodontic appliances
000009972 6531_ $$aturmeric
000009972 691__ $$aSchool of Dentistry$$041368
000009972 692__ $$aDepartment of Orthodontics$$041435
000009972 7001_ $$aTsai, Matthew
000009972 7201_ $$aFerracane, Jack$$uOregon Health and Science University$$041354$$eMentor$$7Personal$$00000-0002-6511-5488
000009972 8564_ $$9a124f79a-b832-4b06-b93c-11f2bfdf58dc$$s1560309$$uhttps://digitalcollections.ohsu.edu/record/9972/files/Tsai.Matthew.2022.pdf
000009972 905__ $$a/rest/prod/rv/04/2t/80/rv042t808
000009972 909CO $$ooai:digitalcollections.ohsu.edu:9972$$pstudent-work
000009972 980__ $$aTheses and Dissertations